EP0715440A4 - Synchronous detector and synchronizing method for digital communication receiver - Google Patents

Synchronous detector and synchronizing method for digital communication receiver

Info

Publication number
EP0715440A4
EP0715440A4 EP95922721A EP95922721A EP0715440A4 EP 0715440 A4 EP0715440 A4 EP 0715440A4 EP 95922721 A EP95922721 A EP 95922721A EP 95922721 A EP95922721 A EP 95922721A EP 0715440 A4 EP0715440 A4 EP 0715440A4
Authority
EP
European Patent Office
Prior art keywords
digital communication
communication receiver
synchronous detector
synchronizing method
synchronizing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP95922721A
Other languages
German (de)
French (fr)
Other versions
EP0715440B1 (en
EP0715440A1 (en
Inventor
Akihiro Higashi
Fumiyuki Adachi
Koji Ohno
Mamoru Sawahashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NTT Docomo Inc
Original Assignee
Nippon Telegraph and Telephone Corp
NTT Mobile Communications Networks Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Telegraph and Telephone Corp, NTT Mobile Communications Networks Inc filed Critical Nippon Telegraph and Telephone Corp
Publication of EP0715440A1 publication Critical patent/EP0715440A1/en
Publication of EP0715440A4 publication Critical patent/EP0715440A4/en
Application granted granted Critical
Publication of EP0715440B1 publication Critical patent/EP0715440B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • H04L25/023—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols
    • H04L25/0236—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols using estimation of the other symbols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0212—Channel estimation of impulse response
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • H04L25/023—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols
    • H04L25/0232—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols by interpolation between sounding signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals
    • H04L7/08—Speed or phase control by synchronisation signals the synchronisation signals recurring cyclically

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
EP95922721A 1994-06-22 1995-06-21 Synchronous detector and synchronizing method for digital communication receiver Expired - Lifetime EP0715440B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP140569/94 1994-06-22
JP14056994 1994-06-22
JP14056994 1994-06-22
PCT/JP1995/001229 WO1995035615A1 (en) 1994-06-22 1995-06-21 Synchronous detector and synchronizing method for digital communication receiver

Publications (3)

Publication Number Publication Date
EP0715440A1 EP0715440A1 (en) 1996-06-05
EP0715440A4 true EP0715440A4 (en) 2000-03-15
EP0715440B1 EP0715440B1 (en) 2004-06-16

Family

ID=15271740

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95922721A Expired - Lifetime EP0715440B1 (en) 1994-06-22 1995-06-21 Synchronous detector and synchronizing method for digital communication receiver

Country Status (6)

Country Link
US (1) US5692015A (en)
EP (1) EP0715440B1 (en)
JP (1) JP3118548B2 (en)
CN (1) CN1082757C (en)
DE (1) DE69533156T2 (en)
WO (1) WO1995035615A1 (en)

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CN1099203C (en) * 1996-03-12 2003-01-15 Ntt移动通信网株式会社 Method for intermittent receiving paging signal in mobile communication system
JP2934185B2 (en) * 1996-03-15 1999-08-16 松下電器産業株式会社 CDMA cellular radio base station apparatus, mobile station apparatus, and transmission method
JP3310160B2 (en) * 1996-03-29 2002-07-29 松下電器産業株式会社 Spread spectrum receiver
US5901185A (en) * 1996-04-15 1999-05-04 Ericsson Inc. Systems and methods for data-augmented, pilot-symbol-assisted radiotelephone communications
FR2747870B1 (en) 1996-04-19 1998-11-06 Wavecom Sa DIGITAL SIGNAL WITH MULTIPLE REFERENCE BLOCKS FOR CHANNEL ESTIMATION, CHANNEL ESTIMATION METHODS AND CORRESPONDING RECEIVERS
JP3377389B2 (en) * 1997-01-10 2003-02-17 株式会社鷹山 Signal receiving method and apparatus in spread spectrum wireless communication system
JP3006679B2 (en) * 1997-01-16 2000-02-07 日本電気株式会社 Cellular mobile phone system
CN1510943A (en) 1997-04-17 2004-07-07 NTT�ƶ�ͨ������ʽ���� Base station device of mobile communication system
JP3204925B2 (en) * 1997-06-18 2001-09-04 株式会社エヌ・ティ・ティ・ドコモ Signal receiving apparatus in CDMA communication system
DE19747367C2 (en) * 1997-10-27 2003-06-26 Siemens Ag Method and arrangement for the transmission of data via a radio interface in a radio communication system
KR100295437B1 (en) * 1997-12-30 2001-07-12 윤종용 Method for optimizing coverage in a multi frequency assignment system
JP3904716B2 (en) 1998-03-10 2007-04-11 松下電器産業株式会社 CDMA mobile communication system
JP3214466B2 (en) * 1998-04-07 2001-10-02 日本電気株式会社 Mobile communication system, communication control method therefor, base station and mobile station used for the same
US6904078B1 (en) 1998-04-23 2005-06-07 Ntt Docomo, Inc. CDMA receiver and CDMA transmitter/receiver
JP3289676B2 (en) 1998-05-28 2002-06-10 日本電気株式会社 Method and apparatus for demodulating received signal including pilot signal
GB2339120B (en) * 1998-06-30 2003-03-19 Nec Technologies Channel estimation device for digital telecommunications stations
US6404826B1 (en) * 1998-07-02 2002-06-11 Texas Instruments Incorporated Iterative signal-to-interference ratio estimation for WCDMA
JP3029030B2 (en) * 1998-08-05 2000-04-04 日本電気株式会社 Method and apparatus for demodulating received signal including pilot signal
GB9818378D0 (en) * 1998-08-21 1998-10-21 Nokia Mobile Phones Ltd Receiver
JP3029031B2 (en) * 1998-09-03 2000-04-04 日本電気株式会社 Interpolated synchronous detection method and wireless communication system
US6411649B1 (en) * 1998-10-20 2002-06-25 Ericsson Inc. Adaptive channel tracking using pilot sequences
US6456671B1 (en) * 1998-11-18 2002-09-24 Trw Inc. Decision feedback phase tracking demodulation
MY130820A (en) * 1998-12-16 2007-07-31 Ericsson Telefon Ab L M Channel estimation for a cdma system using pre-defined symbols in addition to pilot symbols
US6654429B1 (en) * 1998-12-31 2003-11-25 At&T Corp. Pilot-aided channel estimation for OFDM in wireless systems
KR100531356B1 (en) * 1999-02-05 2005-11-28 엘지전자 주식회사 method for transferring data symbol in mobile wireless communication system
CA2333954A1 (en) * 1999-04-02 2000-10-12 Ntt Docomo, Inc. Channel estimation device and method, demodulation device and method, and fading frequency decision device and method
JP4955850B2 (en) * 1999-04-08 2012-06-20 テキサス インスツルメンツ インコーポレイテッド Diversity detection for WCDMA
US6452917B1 (en) * 1999-04-08 2002-09-17 Qualcomm Incorporated Channel estimation in a CDMA wireless communication system
CN100483953C (en) * 1999-05-10 2009-04-29 株式会社Ntt杜可莫 Multiplexing transmission method and multiplexing device, and data signal transmission method and data signal transmission device
US6414988B1 (en) * 1999-05-12 2002-07-02 Qualcomm Incorporated Amplitude and phase estimation method in a wireless communication system
EP2259528B1 (en) * 1999-07-28 2018-12-26 Panasonic Intellectual Property Corporation of America Apparatus for the transmission and reception of data and method for digital radio communication
CN1124728C (en) * 1999-11-25 2003-10-15 华为技术有限公司 Multiple choise coherent detection method
US6892053B2 (en) * 1999-12-01 2005-05-10 Telefonaktiebolaget Lm Ericsson (Publ) Bit error estimates from pilot signals
KR100318952B1 (en) 1999-12-29 2002-01-04 윤종용 Channel estimation apparatus in wireless telecommunication system and method thereof
JP3419726B2 (en) * 2000-02-03 2003-06-23 松下電器産業株式会社 Memory circuit and synchronous detection circuit
EP1317827A2 (en) * 2000-09-15 2003-06-11 Telefonaktiebolaget LM Ericsson (publ) Pilot-assisted channel estimation with pilot interpolation
US6775340B1 (en) 2000-10-13 2004-08-10 Ericsson Inc. Synchronization and channel estimation with extended pilot symbols
JP4448633B2 (en) * 2001-08-31 2010-04-14 富士通株式会社 Mobile communication terminal
US7158542B1 (en) 2002-05-03 2007-01-02 Atheros Communications, Inc. Dynamic preamble detection
US7161955B1 (en) * 2002-05-03 2007-01-09 Atheros Communications, Inc. Modified start frame delimiter detection
US20040165683A1 (en) * 2002-09-04 2004-08-26 Gupta Alok Kumar Channel estimation for communication systems
KR100542807B1 (en) * 2003-04-10 2006-01-11 용인송담대학 Demodulation method and apparatus of forward channel signal for mobile communication system
EP1605600B1 (en) * 2004-06-08 2014-04-23 Freescale Semiconductors, Inc. Wireless communication unit and method of processing a code division multiple access signal
CN104147082A (en) * 2014-08-25 2014-11-19 济南康众医药科技开发有限公司 Drying method of eucommia bark and application of product
WO2021033248A1 (en) * 2019-08-19 2021-02-25 日本電信電話株式会社 Optical communication system and optical communication method

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US5293401A (en) * 1990-09-06 1994-03-08 Motorola, Inc. Equalizer for linear modulated signal
GB2271916A (en) * 1992-10-23 1994-04-27 Roke Manor Research Mobile radio communication systems

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US5257312A (en) * 1991-05-03 1993-10-26 U.S. Philips Corporation Time-discrete stereo decoder
US5329547A (en) * 1993-03-11 1994-07-12 Motorola, Inc. Method and apparatus for coherent communication in a spread-spectrum communication system
JP3018840B2 (en) * 1993-07-27 2000-03-13 三菱電機株式会社 Fading compensator
US5442646A (en) * 1994-02-01 1995-08-15 The Mitre Corporation Subcarrier communication system
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Publication number Priority date Publication date Assignee Title
US5293401A (en) * 1990-09-06 1994-03-08 Motorola, Inc. Equalizer for linear modulated signal
GB2271916A (en) * 1992-10-23 1994-04-27 Roke Manor Research Mobile radio communication systems

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
BAIER A: "Correlative and iterative channel estimation in adaptive viterbi equalizers for TDMA mobile radio systems", ITG FACHBERICHTE,DE,VDE VERLAG, BERLIN, no. 107, pages 363-368, XP002077505, ISSN: 0341-0196 *
See also references of WO9535615A1 *

Also Published As

Publication number Publication date
CN1126013A (en) 1996-07-03
CN1082757C (en) 2002-04-10
DE69533156T2 (en) 2005-07-14
DE69533156D1 (en) 2004-07-22
WO1995035615A1 (en) 1995-12-28
EP0715440B1 (en) 2004-06-16
US5692015A (en) 1997-11-25
EP0715440A1 (en) 1996-06-05
JP3118548B2 (en) 2000-12-18

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